Watts 0881399 Air Gap protecting expensive hardware from thermal

protecting expensive hardware from thermal stress

74" WC setpoint

and a Propane (LP) orifice is included in the packaging for easy conversion

ensuring the air-to-gas mixture remains within stoichiometric limits for peak combustion efficiency

Manufactured to meet OEM electrical specifications

Watts 0881399 Air Gap protecting expensive hardware from thermalThe Watts 0881399 Air Gap (model 909 AG A) is a heavy duty, cast iron drainage fitting specifically engineered for Watts Series 909 RPZ backflow preventers within the " to 1" and 1 " to 2" size ranges. This genuine OEM component facilitates the physical separation required by plumbing codes between the relief valve discharge port and the drain line. By creating a visible, vertical air gap, it prevents cross contamination and back siphonage in the